LA County District Attorney Jackey Lacey said, “My heart goes out to all of you. I can’t imagine the pain you’ve endured over the years of waiting for this devastating crime to be solved.”

It's been tough, but Medley's son Darren said, “I couldn’t be more blown away with the technology that they’ve created, and I want to give hope to other families that this kind of technology can be utilized.”

For Bill Medley, it was an unnerving day on Monday. Just standing a few feet from Klaas's picture on display for reporters he added, "That’s the tough thing. Seeing her picture and rehashing all the crime.”